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尛憇藌回答

從報錯上看應該是是沒有找到這個tree的dom，this.$refs.tree應該沒找到

怣痛回答

@歲月回音
弄懂了誤會你了
是我連接拼接錯誤導致~

itms-services://?action=download-manifest&url=‘https://gitee.com/214836649/enjoy_the_app_sharing_system/raw/3f28a6d773d047e38e744ff58268414930640cbb/kzwx.plist’


itms-services://?action=download-manifest&url=https://gitee.com/214836649/enjoy_the_app_sharing_system/raw/3f28a6d773d047e38e744ff58268414930640cbb/kzwx.plist

用戶表的設置

枕頭人回答

第三方登錄的單獨存一張表，然后和client表關聯(lián)

Edge瀏覽器不支持resize事件，怎么解決？

離人歸回答

resize事件是否綁定成功是否每次寬度改變執(zhí)行了change方法
如果change執(zhí)行了那是否fontSize沒有賦值成功

為什么laravel默認將空字符串轉(zhuǎn)換為null呢

寫榮回答

問題1：
官方?jīng)]有任何文獻說明 空字符串 比 null 效率高。

問題2:
數(shù)據(jù)庫設計是矛盾的，既然默認值是空，就沒必要設置字段為 not null。如果你非要這樣，你可以在 controller 里面使用 array_filter($request->all()) 來過濾掉 null 或者 空字符串 的參數(shù)。

最后，Laravel 是在 5.4 開始加入的，同時加入的還有 TrimStrings, 官方的提交記錄沒有說明是為了什么，個人認為官方是為了標準化數(shù)據(jù)格式，進行統(tǒng)一規(guī)范。

=======分割線=======

繼續(xù)補充一下：

如果非要按照自己的要求來，也建議不要直接去注釋掉官方的中間件引用，以免其他問題，可以定義你自己的 request，在request 處理這個參數(shù)的時候，修改成自己想要的值。

php artisan make:request YourRequest

=======繼續(xù)割========

By default, Laravel includes the TrimStrings and ConvertEmptyStringsToNull middleware in your application's global middleware stack. These middleware are listed in the stack by the AppHttpKernel class. These middleware will automatically trim all incoming string fields on the request, as well as convert any empty string fields to null. This allows you to not have to worry about these normalization concerns in your routes and controllers.
If you would like to disable this behavior, you may remove the two middleware from your application's middleware stack by removing them from the $middleware property of your AppHttpKernel class.

看官方描述的意思 TrimStrings 和 ConvertEmptyStringsToNull 就是為了規(guī)范化數(shù)據(jù)。

php多維數(shù)組怎樣轉(zhuǎn)換成json格式？

孤客回答

多看文檔

vue 數(shù)據(jù)監(jiān)控的時候為什么不能監(jiān)控 arr[2]={name:1} 這樣的數(shù)據(jù)

檸檬藍回答

因為源碼那里，作者使用的defineproperty(),只監(jiān)控了外部data傳進來的list,而沒有監(jiān)控list里面的每一個下標對象

用curl抓取httpcode驗證網(wǎng)頁是否能訪問

別傷我回答

在做vue項目時使用ajax請求php接口數(shù)據(jù)，由于數(shù)據(jù)量太大，請求過慢，還會導致瀏覽器崩潰，該如何解決？

毀了心回答

Php可以用rabbitMQ這些消息隊列來處理數(shù)量較大的數(shù)據(jù)，前端可以一次性或分批傳遞數(shù)據(jù)，反正rabbitMQ可以一直維持服務

我在磁盤分區(qū)的時候不小心刪除某個磁盤，里面的資料都沒了，請問用diskgenius 能恢復嗎？

不將就回答

切記，先不要對該磁盤有任何寫操作，然后再試試用恢復軟件。

至于用哪些恢復軟件，可以看看這個回答

php curl 如何取第二層第三層第四層？

溫衫回答

如果是PHP的話，curl 請求的應該是個字符串，用json_decode( $ret, true) 解析請求的結(jié)果，然后就是數(shù)組了

laravel怎樣在configureMonologUsing方法中獲取錯誤等級

檸檬藍回答

//    參考文章

這里有你需要的

appserve,php項目怎么運行不成功?

夏夕回答

將項目放在根目錄下就可以了

apicloud 極光推送app端接收不到推送信息

懶豬回答

去極光推送社區(qū)問吧，之前我們也是ios無法推送，最后是那邊的技術排出來的，服務端的開發(fā)環(huán)境沒有換成生產(chǎn)環(huán)境

關于php過濾垃圾評論

悶騷型回答

foreach循環(huán)如果匹配到2個以上的敏感詞，你的result變量只屏蔽了最后一個詞

關于redis隊列，和計劃任務來執(zhí)行批量操作的區(qū)別。

嫑吢丕回答

哎？現(xiàn)在的程序員都不會寫多線程了嗎？

區(qū)別的話，性能上有點區(qū)別，redis的隊列是可控的，完整的；定時的計劃任務易受干擾，程序的操作邏輯需要信任外部的一個程序，可控性較低

php編程報錯Uncaught SyntaxError: Unexpected identifier？

悶騷型回答

應該是你的解析json數(shù)據(jù)出錯導致的

js前端緩存模版orAJAX的圖片到本地；下次再加載從緩存中拿到

慢半拍回答

如果是模版渲染的，不都是后端來做緩存嗎？后端會處理這些啊。前端也可以來做。但是并不明白你的難點在哪里。

php設置多語言無效，請問是什么原因呢？

陌上花回答

en改成en-US試試

composer下載yi2不成功

不討喜回答

https://packagist.org/package...
圖片描述

雖然不知道你為什么要下載那么古老的 2.0.5 的版本，但是 composer 官網(wǎng)上的 yiisoft/yii2-app-advanced 包并沒 2.0.5 版本。

現(xiàn)在 yiisoft/yii2-app-advanced 的最新版本是 2.0.14，可以使用如下命令進行下載：

composer create-project yiisoft/yii2-app-advanced advanced 2.0.14

實際上，到目前為止，yii2框架核心的版本已經(jīng)是 2.0.15.1，安裝時composer 會自動將其升級為最新版本。

[/tmp] ]$composer create-project yiisoft/yii2-app-advanced advanced 2.0.14
Installing yiisoft/yii2-app-advanced (2.0.14)
  - Installing yiisoft/yii2-app-advanced (2.0.14): Loading from cache
Created project in advanced
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 59 installs, 0 updates, 0 removals
  - Installing yiisoft/yii2-composer (2.0.6): Loading from cache
  - Installing swiftmailer/swiftmailer (v5.4.9): Loading from cache
  - Installing bower-asset/jquery (3.2.1): Loading from cache
  - Installing bower-asset/yii2-pjax (2.0.7.1): Loading from cache
  - Installing bower-asset/punycode (v1.3.2): Loading from cache
  - Installing cebe/markdown (1.1.2): Loading from cache
  - Installing ezyang/htmlpurifier (v4.10.0): Loading from cache
  - Installing bower-asset/inputmask (3.3.11): Loading from cache
  - Installing yiisoft/yii2 (2.0.15.1): Loading from cache
  - Installing yiisoft/yii2-swiftmailer (2.0.7): Loading from cache
  - Installing bower-asset/bootstrap (v3.3.7): Loading from cache
  - Installing yiisoft/yii2-bootstrap (2.0.8): Loading from cache
  - Installing yiisoft/yii2-debug (2.0.13): Loading from cache
  - Installing bower-asset/typeahead.js (v0.11.1): Loading from cache
  - Installing phpspec/php-diff (v1.1.0): Loading from cache
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  - Installing symfony/yaml (v3.4.8): Downloading (100%)
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phpunit/phpunit-mock-objects suggests installing ext-soap (*)
phpunit/php-code-coverage suggests installing ext-xdebug (^2.5.1)
sebastian/global-state suggests installing ext-uopz (*)
phpunit/phpunit suggests installing phpunit/php-invoker (~1.1)
phpunit/phpunit suggests installing ext-xdebug (*)
symfony/browser-kit suggests installing symfony/process ()
symfony/event-dispatcher suggests installing symfony/dependency-injection ()
symfony/event-dispatcher suggests installing symfony/http-kernel ()
symfony/console suggests installing symfony/lock ()
symfony/console suggests installing symfony/process ()
codeception/base suggests installing aws/aws-sdk-php (For using AWS Auth in REST module and Queue module)
codeception/base suggests installing codeception/phpbuiltinserver (Start and stop PHP built-in web server for your tests)
codeception/base suggests installing codeception/specify (BDD-style code blocks)
codeception/base suggests installing flow/jsonpath (For using JSONPath in REST module)
codeception/base suggests installing league/factory-muffin (For DataFactory module)
codeception/base suggests installing league/factory-muffin-faker (For Faker support in DataFactory module)
codeception/base suggests installing phpseclib/phpseclib (for SFTP option in FTP Module)
codeception/base suggests installing stecman/symfony-console-completion (For BASH autocompletion)
codeception/base suggests installing symfony/phpunit-bridge (For phpunit-bridge support)
Writing lock file
Generating autoload files